Finding the Fourth Proportional to 2,291.55, 3,162.31 and 1,297.03

Step by Step Solution

1. Step 1: Write the proportion equation
   2,291.55 : 3,162.31 = 1,297.03 : x
2. Step 2: Convert to fraction form
   2,291.55/3,162.31 = 1,297.03/x
3. Step 3: Cross multiply
   2,291.55x = 3,162.31 × 1,297.03
4. Step 4: Simplify right side
   2,291.55x = 4,101,610.94
5. Step 5: Solve for x
   x = 4,101,610.94/2,291.55
6. Step 6: Final answer
   x = 1,789.88